[shaunn]

If someone in the U.S. told me something was 'n' football fields long I would assume they mean 100 yards excluding the endzones.

[mrguyorama]

I bet half the time someone gives the length of something in football fields they make that same "error"

Also didn't football fields change size when the goal posts were moved? It's not even a stable measurement!

Meanwhile americans bitch and moan about meters but are perfectly fine using yards. The navy even used to use kiloyards as a unit of measure for naval gun range!